IntroductionThis manual contains complete documentation for FabFilter Pro-Q in printer-friendly format. All information in this manual is alsoaccessible via the Help button in FabFilter Pro-Q's user interface.

Table of contents

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Table of Contents

Introduction About FabFilter Pro-Q 3 Quick start 4 Using FabFilter Pro-Q Overview 5 Knobs 6 Interactive EQ display 7 Editing EQ bands 8 Solo 9 Stereo options 10 Linear-phase processing 12 Spectrum analyzer 13 Output options 14 MIDI learn 15 Undo, redo, A/B switch 16 Presets Loading presets 17 Saving presets 18 How presets are stored 19 Purchasing FabFilter Pro-Q Purchasing FabFilter Pro-Q 20 Entering your license key 21 Support Support 22 Manual installation 23 VST plug-in versions 24 License agreement 25 Acknowledgements 26 About FabFilter 27

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About FabFilter Pro-QThe equalizer is by far the most used tool in audio recording, mixing and mastering. That's why there are probably around 1001 EQplug-ins available. But the strange thing is: most of them don't meet top quality standards by far! Most just lack sound quality andthe ones that do sound okay, often have poorly designed interfaces that obstruct your workflow and creativity.

Now here's where we come in. FabFilter Pro-Q gives you the best of both worlds: the highest possible sound quality, and aninnovative interface that is designed to help you get 'that' sound quickly and easily.

Key features include up to 24 separate EQ bands (bell, low cut, low shelf, high shelf and high cut), state-of-the-art filter algorithmswith precise analog modelling and unlimited internal headroom, zero-latency or linear-phase processing, mid/side support,customizable stereo placement for every band (stereo, left/mid or right/side), 6 dB, 12 dB, and 30 dB display ranges and theeasiest yet most powerful EQ interface ever.

FabFilter Pro-Q is available in VST, VST3, AU (Audio Units), AAX Native and AudioSuite formats (all both 64-bit and 32-bit), as wellas RTAS (32-bit only), for Mac OS X and Windows.

Windows requirements:

32-bit: Windows 8, 7, Vista or XP

64-bit: Windows 8, 7 or Vista (x64)

VST 2/3 host or Pro Tools

Mac OS X requirements:

32-bit: OS X 10.5 or higher

64-bit: OS X 10.6 or higher

AU or VST 2/3 host or Pro Tools

Intel processor

Next: Quick start

See AlsoUsing FabFilter Pro-QAcknowledgements

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Quick startThe installer will copy the FabFilter Pro-Q plug-in into the common VST, VST 3, AU (OS X only) and Pro Tools plug-in folders on yourcomputer. On Mac OS X, the global plug-in folders in /Library/Audio/Plug-Ins are used.

In most cases, your host will then recognize the plugin automatically. However, if the instructions below do not work, see Manualinstallation instead.

CubaseChoose an empty insert slot, for example in the Mixer, and select FabFilter Pro-Q from the menu that appears. To use theMIDI features in Pro-Q, create a new MIDI track and set its output to the Pro-Q instance you have just created. (The VST 3version of Pro-Q can be found in the EQ section.)

Logic ProChoose an empty insert slot on one of your audio tracks, instrument tracks or buses and select FabFilter Pro-Q from the pop-up menu. You will find FabFilter Pro-Q in the Audio Units -> FabFilter section (named FF Pro-Q).

Ableton LiveIn Session view, select the track you would like to place FabFilter Pro-Q on, for example by clicking the track name. At the lefttop of Ableton Live's interface, click on the Plug-in Device Browser icon (third icon from the top). From the plug-ins list,double-click FabFilter/FabFilter Pro-Q, or drag it onto the track.

Pro ToolsChoose an empty insert slot on one of your audio tracks, instrument tracks or buses and select FabFilter Pro-Q from the pop-up menu in the EQ section.

To begin, just open the plug-in and double-click in the display to create new EQ bands. Enjoy!

Next: FabFilter Pro-Q overview

See AlsoOverview

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OverviewThe interface of FabFilter Pro-Q is simple and straightforward. The top part of the interface consists of the interactive EQ displaythat lets you add and edit EQ bands. The selection controls below the display change the settings of the currently selected EQbands. The bottom bar offers advanced features like the processing mode (zero latency or linear phase), channel mode (stereo ormid/side), a spectrum analyzer, global bypass and output level and panning.

Interactive EQ display The interactive EQ display shows you in a glance what's going on and lets you easily create and edit EQ bands. SeeInteractive EQ display.

Selection controlsThe controls below the EQ display adjust the parameters of the currently selected curves in the display. See Editing EQ bands.

Processing modeFabFilter Pro-Q can work in both zero-latency mode or in various linear-phase modes. See Linear-phase processing.

Channel modeEach EQ band either works on both stereo channels, or on a single channel. The Channel mode parameter in the bottom bartoggles between left/right and mid/side processing. See Stereo options.

Spectrum analyzerThe Analyzer button enables or disables the built-in spectrum analyzer that lets you visually judge the effect of the equalizeron the incoming signal. See Spectrum Analyzer.

Output options On the far right of the bottom bar, you can bypass the entire plug-in and adjust the output level and panning. See Outputoptions.

MIDI learnMIDI Learn lets you easily associate any MIDI controller with any plug-in parameter. See MIDI Learn.

Presets, undo, A/B, help With the preset buttons, you can easily browse through the factory presets or save your own settings so you can re-use themin other songs. The Undo, Redo, A/B and Copy buttons at the top of the plug-in interface enable you to undo your changesand switch between different states of the plug-in. Finally, the Help menu provides access to help and version information. SeeLoading presets and Undo, redo, A/B switch.

Next: Knobs

See AlsoQuick start

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KnobsIt is easy to control FabFilter Pro-Q's parameters with the large round knobs. They will light up when you move the mouse cursoraround to indicate that you can adjust them. The moment you move the mouse cursor over a knob, a parameter value display willpop up, which shows the name and the current value of the parameter.

All knobs support four ways of control:

1. Vertical modeClick on the center area of a knob and drag up or down to rotate it. The knob reacts to the speed with which you aredragging, so if you move the mouse slowly, you make precise adjustments.

2. Rotate modeGrab the arrow of the knob and drag it around. By moving the mouse cursor further away from the knob while dragging it,you can make precise adjustments.

3. Mouse wheel modePerhaps the easiest way to make adjustments is by using the mouse wheel when you hover over a knob. This mode worksfor all the knobs and possible panning rings. (On Windows, you might need to click in the plug-in interface first to makesure it is the active window.)

4. Text entry modeDouble-click on a knob to enter an exact value using the keyboard.

Tips

To reset a knob to its default position, hold down the Ctrl key (Windows) or Command key (Mac OS X) and click the knobonce.

To fine-tune a value when using vertical drag mode or the mouse wheel, hold down the Shift key while dragging or movingthe mouse wheel.

In text entry mode, there are several handy shortcuts. With frequency values, you can type e.g. '1k' to set the value to 1000Hz. With dB values, you can type e.g. '2x' to get +6 dB (the value that corresponds to two times louder). With all values, youcan also type a percentage (e.g. '50%' will put a knob exactly in the middle position).

Pro Tools note: the RTAS/AS and AAX versions of our plug-ins implement the default Pro Tools keyboard shortcuts for finetune (Ctrl+drag on Windows, Command+drag on Mac OS X) and reset to default (Alt+click).

Sometimes, knobs in our plug-in interfaces are linked: these be adjusted simultaneously by holding down the Alt key whiledragging on one of them. For example, an output level and input level setting of a plug-in could be adjusted simultaneously(in the opposite direction) this way.

Next: Interactive EQ display

See AlsoOverview

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Interactive EQ displayThe large display shows all EQ bands and lets you easily create new bands and edit them. The thick yellow curve shows the overallfrequency response of the equalizer.

To add a new EQ band, simply click on the yellow overall curve and drag it up or down. Alternatively, double-click or Ctrl-click(Command-click on Mac OS X) on the display background. The shape of newly created curves is determined automaticallydepending on where you click. See also Editing EQ bands.

Click the dot on an EQ band to select it.

Hold down Ctrl (Command on Mac OS X) and click another dot to select multiple bands. Hold down Shift and click a dot toselect a consecutive range of bands.

Click and drag on the display background to select adjacent bands by dragging a rectangle around them.

Click once on the display background to deselect all bands.

Once you have one or more EQ bands selected, the display highlights the shapes of the selected bands. The easiest way to adjustthem is simply by dragging them around:

Click and drag a selected dot to adjust the frequency and gain of all selected bands. If you have multiple bands selected,the gain of all selected bands will be scaled relative to each other.

Use the mouse wheel to adjust the Q setting of the selected bands, making them narrower or wider. This works whiledragging or when the mouse pointer is above a curve dot. Alternatively, hold down Ctrl (Command on Mac OS X) whiledragging vertically to adjust the Q.

Hold down Shift while dragging to fine-tune the settings of the selected bands.

Hold down Alt while dragging to constrain to horizontal adjustments (frequency) or vertical adjustments (gain or Q,depending on the Ctrl/Command key).

Hold down Alt and click the dot on an EQ band once to toggle its bypass state (enabling or disabling the band).

Hold down Ctrl+Alt (Command+Alt on Mac OS X) and click the dot on an EQ band once to change its shape. See Editing EQbands.

In the top-right corner of the display, there is a drop-down button to choose the display range: +/- 3 dB, 6 dB, 12 dB or 30 dB.When you are dragging a curve outside the current range of the display, the range will expand automatically as needed.

Tips

If you right-click on the dot for an EQ band, a pop-up menu will appear with various options. This is a quick way to modifythe EQ band while you're working in the display.

It is possible to turn off the automatic adjustment of the display range by clicking Auto-Adjust Display Range in the Helpmenu.

Even though frequencies above 20 kHz are generally inaudible, the display extends to 30 kHz so you can put filters above thislimit. The left part of the filter, extending into the audible frequency spectrum, still affects the sound. This gives you evenmore possibilities to shape the frequency response of the equalizer just the way you need it.

Next: Editing EQ bands

See AlsoOverviewInteractive EQ display

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Editing EQ bandsThe selection controls below the interactive EQ display show the current settings of the selected EQ bands and enable you to adjustthem precisely.

From left to right, the following parameters are available:

The L/stereo/R buttons control which channels are affected by the selected bands. See Stereo options.

The shape parameter selects the filter shape of the selected bands:

1. Bell, the traditional parametric EQ shape and probably the most versatile of them all

2. Low Shelf, to boost or attenuate low frequencies

3. Low Cut, to cut all sound below the filter frequency

4. High Shelf, to boost or attenuate high frequencies

5. High Cut, to cut all sound above the filter frequency

6. Notch, to cut a small section of the spectrum

When Low Cut or High Cut is selected, a slope parameter appears below the shape parameter that sets the steepness of thefilter from 6 dB/octave to 48 dB/octave.

Note that you also change the shape of an EQ band by Ctrl+Alt-clicking it (Command+Alt on Mac OS X) in the display.

The frequency knob sets the frequency of the selected band between 5 Hz and 30 kHz. If multiple bands are selected, thisknob is disabled because it would otherwise set the frequency of all bands to the same value.

The gain knob sets the gain in dB of the selected bands between -30 and +30 dB. If the Low Cut or High Cut filter shape isselected, this parameter is not used.

The Q knob sets the bandwidth of the selected bands, widening or narrowing them. Because there are different interpretationsof Q values in various EQ plug-ins and scientific papers, we have chosen the value 1 to correspond to the average bandwidth.For the shelf filters, the internal Q values are chosen such that they result in a good range of shelf shapes. Keep this in mindwhen trying to reproduce the filter shapes of another EQ plug-in in Pro-Q: the interpretation of the Q values might not be thesame.

The 6 dB/octave variant of the Low Cut and High Cut filters does not have an adjustable Q setting.

The bypass button lets you easily bypass the selected EQ bands. Note that you can also bypass an EQ band by Alt-clicking itin the display. While an EQ band is bypassed, it is dimmed in the display and a red light glows in the bypass button.

The delete button removes the selected EQ bands. If you have accidentally deleted some bands, you can easily restore themusing the Undo button at the top of the plug-in interface.

Finally, the previous/next buttons at the far right let you easily advance the selection to the adjacent band in the display. To theleft of these buttons, the band number of the currently selected EQ band is shown to help you to identify this band in the hostwhen automating EQ parameters.

Tips

When multiple bands are selected, adjusting the gain or Q knobs will set the gain and Q for all selected bands to the samevalue. In contrast, when you drag multiple bands in the display, this modifies the frequency, gain and Q settings in parallelwithout setting them all to the same value.

Double-click a knob to enter the value directly using the keyboard. See Knobs for more information.

Next: Solo

See AlsoOverviewInteractive EQ display

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SoloWhen you move the mouse cursor near to an EQ dot, a parameter value display pops up showing the current parameter values forthe corresponding EQ band.

Click and hold the solo button (with the headphones icon) to enter solo mode for the current EQ band. The other EQ bands willdim, just like the yellow overall curve. Simply drag the solo button to change the frequency of the band.

In solo mode, you don't hear the effect of the EQ band itself, but instead you will hear the part of the frequency spectrum that isbeing affected by that band. Of course, the frequency range depends on the frequency and Q settings, and is visualized in thedisplay as well.

When using solo mode with Low Cut or High Cut bands, you will hear the frequencies that are being cut away instead of thefrequencies that pass, which helps you to determine whether you are cutting the right frequencies.

Generally, solo mode aims to expose the parts of the incoming audio that matter to the current EQ band, but that you can't hearjust by listening to the regular EQ sound.

Tips

When using solo with Bell or Notch bands, hold down Ctrl (Cmd on Mac) while dragging to change the Q, which will of courseaffect the frequency range that you hear.

You can turn the parameter value display on and off by clicking Show EQ Parameter Display in the Help menu.

Next: Stereo options

See AlsoOverviewInteractive EQ display

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Stereo optionsOne of FabFilter Pro-Q's best features is that it's very easy to equalize both stereo channels in a different way. This is a great wayto surgically remove unwanted sound artefacts, or even to add stereo effects.

To make this even more powerful, Pro-Q offers both Left/Right and Mid/Side channel modes. In the default Left/Right mode, eachEQ band works either on both stereo channels, or on the left or right channel only. This is controlled by the stereo options at thelefthand side of the selection controls:

Click the L or R button to let the selected bands affect only the left or right channel.

Click the stereo button (in the middle) to let the selected bands affect both stereo channels.

Click the split button underneath the buttons to duplicate the selected band, making two identical copies, one operating onlyon the left channel and one operating on the right channel. This makes it very easy to slightly adjust one of the channels.

As soon as one or more of the EQ bands are operating on a single channel, the EQ display switches to per-channel mode, where itshows two overall frequency response curves: a white one for the left channel, and a red one for the right channel, as shown bythe picture above.

Mid/side modeThe Channel Mode parameter in the bottom bar switches between Left/Right and Mid/Side operation. In Mid/Side mode, theincoming stereo signal is converted into Mid (mono) and Side parts, which you can then easily filter independently. This is often aneven better way to fix artefacts or modify stereo information because it represents the stereo signal in a more natural way.

In Mid/Side mode, everything works as described above, except that the stereo options above change to M/stereo/S buttons. Inaddition, the display shows the two overall frequency response curves in white (Mid) and light blue (Side) so you know at aglance in which mode Pro-Q is currently operating.

TechniquesIndependent channel equalization is very useful when dealing with stereo audio containing unbalanced frequency content over thestereo field. Let's say you want to combine a stereo drum recording with a stereo accoustic guitar recording. The drum recordingcontains more low-mid frequencies in the left channel (for example a low tom-tom), and more high frequencies in the right channel(like cymbals or a hi-hat). The guitar sound, recorded with a mic capturing the sound-board/hole panned left and one capturing thefretboard/neck panned right, might have similar frequencies as the drum recording, making it hard to combine them in a balancedway. By using independent left/right channel EQ-ing, it is possible to balance these elements so that they do not fight each other.Instead of EQ-ing the whole stereo track of the drums and guitars one can simply EQ where it is necessary to get the two elementsto complement each other.

Mid/Side EQ is perhaps most commonly used to bring some stereo elements further up within a recording, either by cutting certainfrequencies in the mid channel or by boosting the wanted frequency range in the side channel. It is great for adding a bit of depthto typical hard panned rock/heavy guitar recordings where you boost the "bite" frequency range of the guitars (around 2-4kHz) witha quite narrow eq. Combine this with cutting some of the "mud" away from the side channels will give the illusion of huge guitarsthat still sit well within a mix.

Independet Mid/Side equalization is also often used during mastering. For example, raising high frequencies in the Side channel canfreshen up the sound, while a low-cut filter in the Mid channel can work very well to clear up the low end.

Consider using linear-phase processing when filtering both stereo channels (either in Left/Right or Mid/Side mode) differently toavoid introducing unwanted phase changes.

Mono operationFabFilter Pro-Q can also work as a mono equalizer plug-in, but in this case the stereo options and the Channel Mode parameter arenot available, of course.

When loading 'stereo' presets (containing EQ bands that work on e.g. the left or right channel) in the mono version of Pro-Q, all EQbands are treated as if they work on the mono channel. You should be aware that this can sometimes yield unexpected results. Forexample, if a stereo preset contains two bands working on the left and right channels respectively, at the same frequency, withgain=+10 dB, this will result in a +20 dB peak in the mono version. Therefore it is best not to use any presets that use per-channel processing in the mono version of Pro-Q.

Next: Linear-phase processing

See AlsoOverview

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Interactive EQ display

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Linear-phase processingWhen filtering audio, traditional analog and digital filters always introduce phase problems. What happens is that the phase ofdifferent frequencies in the signal is changed in different ways. This can subtly change the sound (not necessarily in a bad waythough). It does affect transients and it can make the sound less transparent.

Moreover, problems arise when you mix a filtered and phase-altered signal with another similar signal that has not been filtered, orthat has been filtered in a different way. In this case, it is very likely that the different phase components of both signals won'tmatch up properly and will cancel each other to some extent.

This situation can for example occur when mastering. It is quite common to apply an equalizer only to a part of the song, usingcrossfades at the beginning and end of the affected region. Because the phase information in the original and filtered parts isdifferent, the fades won't work as intended.

Linear-phase equalization provides an answer to these problems. Linear-phase filters change the phase of the incoming signal inthe same way for all frequencies. This ensures that no unwanted phase cancellation will take place, preserving transients and thetransparency of your music.

However, linear-phase filters also have some disadvantages. First of all they introduce latency: the entire signal is delayed whenpassing through the plug-in. Longer latency means greater resolution when making low-frequency changes to the signal, butunfortunately this also can lead to the creation of 'pre-echoes' that can make low-frequency transients (e.g. a kick drum) lose theiredge. Choosing the latency correctly is a compromise depending on the program material and your personal preference.

To give you the best of both worlds, FabFilter Pro-Q provides both zero-latency and various linear-phase processing modes.Apart from the differences discussed above, the EQ has the same frequency response in both modes.

To change the processing mode, use the Processing seting in the bottom bar of the interface.

Zero latency mode is the default. While it introduces phase changes, it is CPU-efficient and doesn't result in any latency, so itis the best mode for e.g. live usage. Also, it's quite possible you might like the coloration introduced by the phase changeswhen mixing, for example.

Linear Phase - Low Latency provides linear-phase processing with a minimal latency. Use only with low Q settings, or whenonly changing the mid-high part of the spectrum. With a sample rate of 44.1 kHz, it results in a total latency of 3072 samples(about 70 ms).

Linear Phase - Medium Latency is a good compromise between low-frequency resolution and latency and we recommend touse this in general for linear-phase processing. The total latency is 6144 samples at a sample rate of 44.1 kHz (about 139ms).

Linear Phase - High Latency gives very good low-frequency resolution. If you need to use high Q settings when changingthe low end of the spectrum, use this mode. The total latency is 12288 samples at a sample rate of 44.1 kHz (about 279 ms).

Linear Phase - Maximum Latency results in even better low-frequency resolution at the expense of latency and possiblepre-echo problems. The total latency here is 24576 samples at a sample rate of 44.1 kHz (about 557 ms).

To conclude, Pro-Q lets you freely choose between zero-latency and linear-phase processing as you go. If you use high Q settingscombined with low-frequency filtering, you need to use a higher latency; if you only work on the mid-high frequencies, you can getby with a lower latency.

Notes

Not all hosts are capable of switching the latency of a plug-in dynamically. Cubase 5 and Logic Pro do this successfully.However, in Pro Tools HD it is necessary to deactivate and re-activate Pro-Q after changing the processing mode. Also, notethat Pro Tools HD supports only a maximum latency of 4096 samples (on supported hardware), while Pro Tools LE doesn'tsupport latency compensation at all.

When working with different sample rates, the latency in samples of the various linear-phase modes can change to give youapproximately the same low-frequency resolution (and the same latency in ms).

Due to Pro-Q's advanced filter design, the CPU usage is very low, even when using up to 24 EQ bands, and it doesn't changemuch with the different linear-phase processing modes. On the other hand, the latency might be higher than in other plug-ins.

Next: Spectrum analyzer

See AlsoOverviewInteractive EQ display

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Spectrum analyzerTo help you judge the effect of the combined EQ bands on the incoming audio signal, FabFilter Pro-Q includes a powerful real-timefrequency analyzer.

The spectrum analyzer is controlled by the Analyzer menu in the bottom bar.

Off turns the spectrum analyzer off so it doesn't consume any CPU power.

Pre-EQ turns the spectrum analyzer on and connects it to the incoming audio signal before it is modified.

Post-EQ turns the spectrum analyzer on and connects it to the outgoing audio signal, after all the EQ bands have beenapplied. Note that the global bypass parameter is ignored by the Post-EQ mode: if global bypass is active, the analyzer willstill show the signal after having been filtered by all EQ bands.

Pre+Post turns the spectrum analyzer on, showing both the spectrum of the incoming audio signal and the outgoing audiosignal at the same time.

The Resolution submenu selects how precise the spectrum analyzer works. Higher resolution settings allow more precision inthe low-frequency area, but because more incoming samples are needed to calculate a single spectrum, dynamic changes areless clearly visible. The Low value corresponds to a resolution of 1024 points, Medium to 2048, High to 4096, andMaximum to 8192 points.

The Speed submenu selects the release speed of the spectrum. A fast release shows dynamic changes more clearly, while aslow release gives you more time to examine the spectrum before it disappears. Higher resolution settings generally workbetter with slower release speeds.

If the spectrum analyzer is enabled, a separate gain scale is shown at the lefthand side of the EQ display, ranging from -72 to 0 dB.

Notes

When skipping through presets, the current analyzer settings are not changed, but they are saved in songs.

By default, the spectrum analyzer is off. If you would like it to be on by default, set the desired mode for the analyzer in thebottom bar, and then overwrite the Default Setting preset. Now all parameter values you just saved, including the analyzermode, are used as the default setup for any new Pro-Q instances.

Next: Output options

See AlsoOverviewInteractive EQ display

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Output optionsAt the righthand side of the bottom bar in the interface, FabFilter Pro-Q contains a set of global output level and bypassparameters.

The Output Gain parameter lets you adjust the output level between minus infinity and +36 dB. You can use this to correctany overall level change that the EQ bands might introduce. Note that FabFilter Pro-Q features unlimited internal headroom soit won't clip internally at any level. You only need to be concerned about any clipping that might occur after the signal has leftPro-Q.

The Output Pan parameter lets you change the relative levels of the left and right audio channels. When Mid/Side mode isactive, it adjusts the relative levels of the mid and side channels instead.

You can bypass the entire plug-in with the Global Bypass toggle button to the left of the output level button. While mosthosts already provide the ability to bypass plug-ins, our internal global bypass feature is guaranteed to work correctly inlinear-phase mode (compensating for the latency of the plug-in) and also applies soft bypassing to avoid clicks. While theplug-in is bypassed, the EQ display dims and a red light glows in the bypass button itself.

The output level meter at the far right of the bottom bar shows the current output level, together with a clipping indicatorthat lights up red if the output signal has exceeded 0 dB. Click on the meter to reset it. You can hide/show the meter byclicking Show Output Level Meter in the Help menu.

Note that FabFilter Pro-Q has unlimited internal headroom and will never clip itself: the clipping indicator merely warns againstpossible clipping during further processing of the output signal.

Tips

You can directly adjust the output gain by clicking and dragging the output button vertically, so there is no need to click itfirst to view the output knobs.

When the output knobs are visible, you can double-click them to be able to enter a value directly using the keyboard.

You can hide/show the small output level meter by clicking Show Output Level Meter in the Help menu.

Next: MIDI learn

See AlsoOverview

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MIDI LearnControlling FabFilter Pro-Q's parameters directly with MIDI is very easy using the MIDI Learn feature. With MIDI Learn, you canassociate any MIDI controller with any parameter.

Click the MIDI Learn button in the bottom bar to enter MIDI Learn mode. The interface dims and the parameters that can becontrolled are highlighted. Each parameter has a small text balloon that displays the associated controller number. Now do thefollowing to associate a controller number with a parameter:

1. Touch the control of the desired parameter in the interface that you wish to control. A red square will mark the chosenparameter.

2. Adjust the slider or knob on your MIDI keyboard or MIDI controller that you want to associate with that parameter.

That's it! The parameter will now be controlled with the MIDI controller. You can now go back to step 1 to associate a differentparameter. Note that there is no warning when you associate a different knob with a controller number that is already used. It willjust be replaced.

To exit MIDI Learn mode, click the MIDI Learn button again, or click Close at the top of the interface.

Click the small menu drop-down button next to the MIDI Learn button to access the MIDI Learn menu:

Enable MIDIThis globally turns MIDI control of parameters on or off: useful in hosts that automatically send all MIDI events on a track toall effect plug-ins associated with that track as well.

ClearThis submenu shows all parameter associations and lets you delete individual associations or clear all associations in one step.

RevertReverts to the last saved MIDI mapping (or the state when the plug-in was started).

SaveSaves the current MIDI mapping so Revert will go back to this state. The current mapping is automatically saved when closingthe plug-in.

Routing MIDI to effect plug-insFor MIDI Learn to work properly, the plug-in need to actually receive MIDI of course. Depending on your host, it can be quitedifficult to route MIDI data to effect plug-ins. Here's how to do it in the most important hosts:

Logic ProInstead of adding FabFilter Pro-Q to one of the insert slots, create a new Instrument Track, and click on the Instrumentslot. Then choose AU MIDI-controlled Effects > FabFilter > FF Pro-Q. Now, the plug-in receives MIDI. To get audio into theplug-in, click the 'Side Chain' drop down menu in Logic's plug-in header and choose the actual input track. Next, you canmute that original track, so you only hear the audio through the plug-in. The only downside is that plug-ins with an externalside-chain cannot use it anymore.

CubaseSimply create a new MIDI track and set its output to the Pro-Q instance you would like to control via MIDI.

Pro ToolsCreate a new MIDI track. From the MIDI input drop down menu, choose your MIDI device (if not already selected) and fromthe MIDI output drop down menu, choose FabFilter Pro-Q -> channel 1 for the instance you would like to control.

Ableton LiveFirst of all, create a new MIDI track. From the 'MIDI from' drop down menu, choose your MIDI device (if not alreadyselected). Then, in the 'MIDI to' drop down menu, choose the Audio track that has FabFilter Pro-Q on it. NOTE: only the firstplug-in on any track can receive MIDI!

Next: Undo, redo, A/B switch

See AlsoOverview

15

Undo, redo, A/B switchThe Undo and Redo buttons at the top of the FabFilter Pro-Q interface enable you to easily undo changes you made to the plug-in.With the A/B feature, you can quickly switch between two different states of the plug-in.

The Undo button at the left will undo the last change. Every change to the plug-in (such as dragging a knob or selecting anew preset) creates a new state in the undo history. The Undo button steps back through the history to restore the previousstates of the plug-in.

The Redo button cancels the last undo command. It steps forward through the history until you are back at the most recentplug-in state.

The A/B button switches from A to B and back. Before switching, the current state of the plug-in is saved, so if you click thisbutton twice, you are back at the first state. The button highlights the currently selected state (A or B). In the example above,the A state is active.

The Copy button copies the active state to the inactive state. This marks the current state of the plug-in and allows you to goback to it easily with the A/B button. After clicking Copy, the button disables itself to show that both states are equal, sothere is nothing to copy anymore.

Notes

If the plug-in parameters are changed without using the plug-in interface, for example with MIDI or automation, no new undostates are recorded.

The Undo and Redo buttons will disable themselves if there is nothing to undo or redo.

Next: Loading presets

See AlsoOverview

16

Loading presetsFabFilter Pro-Q comes with a small set of basic presets, giving a good idea of what you can do.

To load a preset, click the preset button. The presets menu will appear with all available presets. Click a menu item to loadthat preset. The currently selected preset is highlighted with check marks.

To explore the presets one by one, click on the little arrow buttons to the left and right of the main preset button. This willload the previous or next preset in the menu.

The preset button shows the name of the current preset. If you have changed the preset by adjusting one or more parameters, thename is dimmed to indicate that this is not the original preset anymore.

Tips

The Default Setting preset is loaded automatically when FabFilter Pro-Q is started. To change the default settings, simplyoverwrite this preset by clicking Options > Save As Default in the presets menu.

To open a preset outside the presets folder, click Options > Open Other Preset. This might be useful if someone sends youa preset by e-mail, for example.

If somehow the factory presets are lost or not installed properly, click Options > Restore Factory Presets in the presetmenu to restore them.

MIDI Program Change and Bank SelectLoading a presets can also be done via MIDI, using Bank Select and Program Change messages. Click Options > Enable MIDIProgram Changes in the preset menu to enable or disable this feature. When enabled, the corresponding bank/program numbersare shown in front of the preset name (for example: (2/65) My Preset). This means that you can load that preset by first sending aBank Select message to select bank 2 and then sending a Program Change message to select program 65.

Important: All the presets in your preset folder are numbered automatically, starting with bank 0 and program 0. This way, youare able to access any of the presets via MIDI. However, this also means that when you add new presets to the menu,bank/program numbers of other presets might change. Be aware of this when recording program changes in a session!

Working with Pro Tools control surfacesFabFilter Pro-Q supports the most important Pro Tools hardware control surfaces, such as Avid ICON D-Control and D-Command.Because you need a fixed number of bands in Pro-Q to use this effectively, we have added a Flat 7 Bands factory preset that can beused as your personal default preset. To set this preset as FabFilter Pro-Q's startup setting, load it once and then choose Options> Save As Default in the presets menu.

Next: Saving presets

See AlsoOverview

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Saving presetsYou can easily extend the included presets with new settings to build your own library of presets for FabFilter Pro-Q that you canreuse in various projects. This is also a good way to copy settings across multiple instances of FabFilter Pro-Q in a session.

To save the current setting as a preset, click the preset button, and then click Save As. A standard Save dialog will appear. Type aname for the new preset and click Save to finish.

In the Save dialog, you can also rename and delete existing presets and create a new folder to store presets in. New folders willshow up as new categories in the preset menu. (On Mac OS X, this should be done with the Finder.)

See How presets are stored to determine the preset folder location and learn more about factory presets.

Next: How presets are stored

See AlsoLoading presetsOverview

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How presets are storedPresets for FabFilter Pro-Q are stored in separate files with the .ffp extension (for FabFilter Preset). All presets reside in subfolders inthe main preset folder. The subfolders will show up as separate categories in the preset menu. You can also further divide thesubfolders into categories.

You can manage the preset files just like other files on your computer. The easiest way to do this is in the Save dialog that appearsif you are saving a preset. The preset menu will automatically reload itself with the changes when the dialog is closed.

Furthermore it is very easy to share your newly created presets with other users since FabFilter presets use the same file format onboth Windows and Mac OS X.

The default location of the main preset folder is My Documents\FabFilter\Pro-Q for Windows, and~/Library/Audio/Presets/FabFilter/FabFilter Pro-Q for Mac OS X. To change this location, first copy all presets to the desired newlocation, and then click Options > Change Preset Folder in the preset menu and select the new folder.

Restoring factory presetsIf you have accidentally lost the factory presets, you can easily restore them by clicking Options > Restore Factory Presets inthe preset menu. This will install all factory presets again.

Next: Purchasing FabFilter Pro-Q

See AlsoSaving presetsOverview

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Purchasing FabFilter Pro-QOnce you have downloaded and installed the evaluation copy of the FabFilter Pro-Q, you may evaluate it during 30 days. Every timeyou start the plug-in, you will see the following dialog:

While there are still days left, you can click Evaluate to start working with the plugin. If you want to keep using FabFilter Pro-Qafter the evaluation period, you must buy a copy in the online FabFilter Shop by clicking the Buy Now button in the evaluationdialog.

Go to the FabFilter Shop and purchase FabFilter Pro-Q now

We accept credit cards from all major companies, check payments, wire payments, and PayPal. The FabFilter Shop uses secureconnections and encryption: therefore your personal information is completely safe.

Within a few minutes after you have purchased your copy, you will receive an e-mail containing your personal license key. You usethis license key to turn the evaluation copy into a fully registered version without the evaluation dialog and the 30-day trialrestriction.

Note: If the evaluation period has expired but you didn't have the chance to properly evaluate the plug-in, you can request a newevaluation period by contacting us at info@fabfilter.com .

Next: Entering your license key

See AlsoSupportLicense agreement

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Entering your license keyAfter you have purchased FabFilter Pro-Q in the online FabFilter Shop , you will immediately receive an e-mail containing yourpersonal license key. This license key will turn the evaluation version into a fully registered plug-in.

Start FabFilter Pro-Q and click Enter License in the evaluation dialog, or click Enter License on the Help menu if the plug-in isalready running.

Copy the license information from the e-mail you have received and paste it into the text field. Make sure that you are copyingthe entire license key including the Product and Licensee lines! If you are not sure what text to copy, just copy and paste thewhole e-mail.

After you have entered your license information, you will need to restart the plug-in host, so make sure you save your settings ifneeded. From now on, you will be able to use FabFilter Pro-Q for an unlimited period of time with full support via e-mail.

Tips

After your purchase, you can always retrieve your license key again by logging into your personal FabFilter account . Hereyou can also keep track of all your orders and take advantage of great discounts when buying other FabFilter plug-ins!

To deauthorize your license key and remove it from the computer, click Deauthorize on the Help menu. If you temporarilyneeded to install your license on another computer, or if you have transferred your license to someone else, this is the way todeinstall your personal license key safely.

Next: Support

See AlsoPurchasing FabFilter Pro-Q SupportLicense agreement

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SupportIf you need help with problems or questions, and the help file does not provide an answer, please visit the support pages on ourweb site.

Go to FabFilter Support

From here, you have direct access to the customer support forum, very useful tutorial videos for all FabFilter plug-ins, online andPDF versions of all our help files, and a section with extra downloads (such as presets, controller templates, older plug-in versions).

For sales-related questions and technical support, you can also contact FabFilter directly at info@fabfilter.com.

Reporting a bug

If you have encountered a bug in FabFilter Pro-Q, first of all make sure that you are using the latest version of the plug-in, whichyou can find at www.fabfilter.com/download . You can easily check the version of FabFilter Pro-Q that you are using by clickingHelp > About in the plug-in interface. If the bug is still present in the latest version, please send us an e-mail at info@fabfilter.comand include as much technical information as possible: operation system and version, host software and version, steps to reproducethe bug, etc. Thanks in advance!

Next: Manual installation

See AlsoOverviewAbout FabFilter

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Manual installationWhen installing FabFilter Pro-Q, the installation program will try to copy the plug-in into the appropriate plug-ins folders, and inmost cases your host will recognize FabFilter Pro-Q automatically. Otherwise, please follow these instructions:

Windows

On Windows, most hosts have their own VST plug-ins folder. So if you are using Windows and your host does not recognizeFabFilter Pro-Q, you need to locate the proper plug-ins folder for your host first (it is usually shown in the Preferences or similardialog). Then, copy the file FabFilter Pro-Q.dll from C:\Program Files\FabFilter\Pro-Q (or C:\Program Files (x86)\FabFilter\Pro-Q ifyou are using a 32-bit host on 64-bit Windows) to the plug-ins folder that you have found and restart the host so it can reload allits plug-ins. For the AAX version of Pro-Q, copy the FabFilter Pro-Q.aaxplugin folder to the common Pro Tools AAX plug-in folder onyour computer; for the RTAS version of Pro-Q, copy the FabFilter Pro-Q.dpm and FabFilter Pro-Q.dpm.rsr files to the Pro ToolsRTAS plug-in folder on your computer.

Mac OS X

On Mac OS X, plug-ins are installed in the standard plug-in folders in the system Library folder. These are the only possible correctlocations:

Audio Units: /Library/Audio/Plug-Ins/Components

VST/VST3: /Library/Audio/Plug-Ins/VST and /Library/Audio/Plug-Ins/VST3

RTAS: /Library/Application Support/Digidesign/Plug-Ins

AAX: /Library/Application Support/Avid/Audio/Plug-Ins

Note: AU and VST/VST3 plug-ins may be placed in the user's Library folders under ~/Library/Audio/Plug-Ins as well.

If you still have problems, contact FabFilter Support .

Next: VST plug-in versions

See AlsoQuick startSupport

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VST plug-in versionsFabFilter Pro-Q is available in both VST 2 and the new VST 3 formats. They can be installed and used both at the same time. TheVST 3 format can only be used by hosts that support it, for example Steinberg's Cubase 5. At this moment, the VST 2 format iscompatible with more different hosts and it has more thorough MIDI support (i.e. polyphonic aftertouch).

VST 2For the VST 2 format, there are two versions of the FabFilter Pro-Q plug-in, a mono and a stereo one:

FabFilter Pro-Q: Stereo version of the plug-in

FabFilter Pro-Q (Mono): Mono version of the plug-in

Note: The VST 3 version of the plug-in can be used on both mono and stereo tracks.

Next: License agreement

See AlsoQuick startManual installation

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FabFilter Software License Agreement1. Disclaimer

FABFILTER, FREDERIK SLIJKERMAN AND FLORIS KLINKERT, AUTHORS OF THIS FABFILTER PRODUCT, SPECIFICALLY DISCLAIM ALLWARRANTIES, EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY ANDFITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL FABFILTER, FREDERIK SLIJKERMAN AND FLORIS KLINKERT, BE LIABLEFOR ANY DAMAGE A FABFILTER PRODUCT MAY CAUSE, INCLUDING BUT NOT LIMITED TO SPECIAL, INCIDENTAL, CONSEQUENTIALOR OTHER DAMAGES.

2. Terms of Use

You may use an evaluation copy of this FabFilter product for an period of up to 30 days. Once the evaluation period has ended, youmust either purchase your copy, or remove it from your computer. If you have purchased your copy of this FabFilter product, youmay continue to use your evaluation copy beyond the end of the 30-day evaluation period until your license key arrives.

We encourage you to distribute the evaluation copy and give copies to friends, as long as there is no payment involved.

You may not reverse engineer, reverse compile, or disassemble any of the files in the distribution.

You are not allowed to distribute or copy the full version of any FabFilter product. The license key that you receive when purchasingit is personal and confidential and may not be disclosed. The full version is a commercial program. It is a violation of internationalcopyright laws to give copies to other people. You may give them the evaluation copy, so they can purchase the program on theirown.

3. VST plugin technology

VST is a trademark of Steinberg Soft- und Hardware GmbH.

Next: Acknowledgements

See AlsoPurchase FabFilter Pro-QSupport

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AcknowledgementsCredits go to Thorsten Schmidt for laying the foundation for Pro-Q during his internship at FabFilter, having to cope with two verystubborn know-it-alls all of the time.

And of course, a huge thanks to our beta testers for their relentless testing of all different beta versions! Thanks especially to Markden Hartog and Niklas Silen for sharing valuable EQ tips and techniques.

Next: About FabFilter

See AlsoPurchase FabFilter Pro-QSupport

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About FabFilterBeautiful sound. Fantastic workflow. These are the foundations of FabFilter. We create powerful audio plug-ins with superb soundquality and innovative interfaces.

A unique perspective

At FabFilter, we make the best possible tools for music production and audio processing. To achieve this, we continually rethink andchallenge industry standards: we've never been afraid of reinventing the wheel. Considering every little detail, we tune ouralgorithms and interfaces until they sound perfect, look amazing and feel great to work with.

It's the sound that counts

Above everything else, you need superb sound quality. That's why we put a lot of effort into developing unique audio processingalgorithms, ranging from our famous resonating filters to transparent high-end EQ and dynamics processing.

Innovative interfaces, great design

Every FabFilter plug-in has an easy-to-use, well-designed interface aimed at providing unsurpassed workflow. Our plug-ins focus onthe task you're performing at that specific moment: they expose the features you need, when you need them. And because of ourspecial attention to design, you'll be delighted every time you open a FabFilter plug-in.

Don't take our word for it

We always set the highest standard for sound quality, usability and design to make truly great products that raise the bar on whataudio software can do. That's why we're very happy with the praise we've received from users and press alike:

"In the decade since the release of its first plug-in, One, FabFilter has made an indelible mark on the music productionlandscape." - Computer Music magazine

"While many other software developers are busy trying to model hardware, FabFilter is leaving them in the dust by beingvisionaries and reaching into the future. FabFilter stuff is just on another level." - Jeff Sanders

"FabFilter has an enviable reputation for making easy-to-use, powerful tools." - Music Tech magazine

FabFilter was founded in 2002 by Frederik Slijkerman and Floris Klinkert, and is based in Amsterdam, The Netherlands.

See AlsoSupportFabFilter web site

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